Advantages in Mathematically Weighting Waterfowl Food Habits Data

Advantages in Mathematically Weighting Waterfowl Food Habits Data

The relative importance of various foods occurring in the diet of blue-winged teal (Anas discors), pintail (A. acuta), and gadwall (A. strepera) breeding in south-central North Dakota and lesser scaup (Aythya affinis) breeding in the vicinity of Great Slave Lake, Northwest Territories, are compared...

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Veröffentlicht in:The Journal of wildlife management 1974-04, Vol.38 (2), p.302-307
Hauptverfasser: Swanson, George A., Krapu, Gary L., Bartonek, James C., Serie, Jerome R., Johnson, Douglas H.
Format: Artikel
Sprache:eng
Schlagworte:
Animal feeding behavior
Birds
Diet
Esophagus
Feeding habits
Food
Food consumption
Food economics
Prairies
Waterfowl
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Beschreibung
Zusammenfassung:The relative importance of various foods occurring in the diet of blue-winged teal (Anas discors), pintail (A. acuta), and gadwall (A. strepera) breeding in south-central North Dakota and lesser scaup (Aythya affinis) breeding in the vicinity of Great Slave Lake, Northwest Territories, are compared by the aggregate volume and aggregate percent methods. Advantages of the aggregate percent method are discussed in relation to the information presented.
ISSN:0022-541X
1937-2817
DOI:10.2307/3800737